线性光隔PS8741在空中机器人电压监测中的应用

针对某型空中机器人机载电源监测电压存在的温度漂移现象,提出3种温度补偿方案:加入负温度系数热敏电阻、普通光隔线性化、直接采用线性光隔,最终选用高精度线性光隔PS8741;详细给出了PS8741的工作原理及典型应用电路,并对电路进行高低温试验;为便于数据处理,开发了基于MATLAB的图形用户界面(GUI);实验结果表明,利用PS8741测得电压线性度好,抗干扰性强,可有效抑制监测电压随温度漂移,为空中机器人的准确、安全飞行提供有利保障。     

Kernel PCA for Feature Extraction and De-Noising in Nonlinear Regression

In this paper, we propose the application of the Kernel Principal Component Analysis (PCA) technique for feature selection in a high-dimensional feature space, where input variables are mapped by a Gaussian kernel. The extracted features are employed in the regression problems of chaotic Mackey–Glass time-series prediction in a noisy environment and estimating human signal detection performance from brain event-related potentials elicited by task relevant signals. We compared results obtained using either Kernel PCA or linear PCA as data preprocessing steps. On the human signal detection task, we report the superiority of Kernel PCA feature extraction over linear PCA. Similar to linear PCA, we demonstrate de-noising of the original data by the appropriate selection of various nonlinear principal components. The theoretical relation and experimental comparison of Kernel Principal Components Regression, Kernel Ridge Regression and ε-insensitive Support Vector Regression is also provided.     

基于二总线结构的监测系统设计

介绍了二总线通信基本原理,并给出了基于二总线结构的监测系统的构成。该监测系统已在军事领域中得到应用。     

土木工程智能健康监测与诊断系统

土木工程智能健康监测与诊断系统由传感元件、信号采集、信号传输与处理、健康诊断与安全评估、结果输出等部分构成。引入智能传感器、信息融合、故障诊断、结构损伤探测理论等对结构健康监测与诊断系统进行探讨 ,最后指出必须解决的关键问题与存在的困难 ,指明其广阔的应用前景     

The development of multiple reaction monitoring assays for liver-derived plasma proteins

There is wide interpatient variability in toxicity to chemotherapeutic drugs and a lack of routine clinical tests for prospectively identifying patients at risk of developing toxicity from chemotherapy. An empirically driven MS strategy has been developed to monitor liver-derived plasma proteins as potential biomarkers of early toxicity. Multiple reaction monitoring (MRM) has been used to assess 46 candidate peptides from 18 liver-derived proteins. Following an iterative process of assay design, optimisation and assessment we selected 29 MRM assays (median CV 4.6%, range 1.2-11.6%) and monitored changes in levels of plasma proteins from a small number of colorectal cancer (CRC) patients undergoing chemotherapy. We demonstrated MRM assay robustness, and show that patients undergo minor elevation in plasma proteins when profiled on Day 3 of the chemotherapeutic regime. The MRM assays were in general agreement with 2-D DIGE-based quantitation from the same patient samples. The data supports the application of MRM-based methods as facile, highly reproducible, medium-throughput techniques that warrant expanded investigation for clinical utility in identifying patients at risk of developing chemotoxicity.     

Identification of statistical patterns in complex systems via symbolic time series analysis

Identification of statistical patterns from observed time series of spatially distributed sensor data is critical for performance monitoring and decision making in human-engineered complex systems, such as electric power generation, petrochemical, and networked transportation. This paper presents an information-theoretic approach to identification of statistical patterns in such systems, where the main objective is to enhance structural integrity and operation reliability. The core concept of pattern identification is built upon the principles of Symbolic Dynamics, Automata Theory, and Information Theory. To this end, a symbolic time series analysis method has been formulated and experimentally validated on a special-purpose test apparatus that is designed for data acquisition and real-time analysis of fatigue damage in polycrystalline alloys.     

The multimodal world of medical monitoring displays

A vision of the future of intraoperative monitoring for anesthesia is presented-a multimodal world based on advanced sensing capabilities. I explore progress towards this vision, outlining the general nature of the anesthetist's monitoring task and the dangers of attentional capture. Research in attention indicates different kinds of attentional control, such as endogenous and exogenous orienting, which are critical to how awareness of patient state is maintained, but which may work differently across different modalities. Four kinds of medical monitoring displays are surveyed: (1) integrated visual displays, (2) head-mounted displays, (3) advanced auditory displays and (4) auditory alarms. Achievements and challenges in each area are outlined. In future research, we should focus more clearly on identifying anesthetists' information needs and we should develop models of attention in different modalities and across different modalities that are more capable of guiding design.     

CORBA在远程控制中的应用

CORBA标准是分布对象管理系统的一个重要工业标准。作为支持异检分布系统的开发和运行的环境和平台,在众多的领域得到了广泛的应用。介绍了CORBA在远程控制中的实际应用及其工作原理和应用方法。     

监控网络系统体系结构与路由算法研究

本文在视频监控系统体系结构的基础上讨论了视频监控系统的扩充和互连方法。提出了数字监控系统中自治系统、视频桥和远程视频代理的概念。并以此为基础,给出了对等体系结构下智能监控系统动态视频路由算法的设计与实现方法。     

基于微控制器的玻璃抗风压检测系统设计

本文介绍了用89C2051系列单片机设计的建筑玻璃抗风压检测系统。该系统能自动记录在不同风压作用下门窗受力构件测量点的位移量,其测量数据可直接读取,也可传送给上位机分析、处理、统计;上位机平台由VB语言设计完成。